Editing Heat recovery ventilation (section)

=== Importance ===
Nearly half of global energy is used in buildings,<ref>{{cite web |url=http://www.interacademycouncil.net/CMS/Reports/11840/11914/11920.aspx |title=2.3 The buildings sector - InterAcademy Council |website=www.interacademycouncil.net |url-status=dead |archive-url=https://web.archive.org/web/20080601164314/http://www.interacademycouncil.net/CMS/Reports/11840/11914/11920.aspx |archive-date=2008-06-01}}</ref>{{Obsolete source|date=February 2024}}and half of heating/cooling cost is caused by ventilation when it is done by the "open window" method {{definition needed|date=July 2022}} according to the regulations{{citation needed|date=July 2022}}. Secondly, energy generation and grid is made to meet the peak demand of power. To use proper ventilation; recovery is a cost-efficient, sustainable and quick way to reduce [[global energy consumption]] and give better indoor air quality (IAQ) and protect buildings, and environment.{{citation needed|date=January 2024}}